Climbable block



FIG. 1 is a top-front-right side perspective view of a climbable block, showing the design;

FIG. 2 is a bottom-front-right side perspective view of the climbable block;

FIG. 3 is a top view of the climbable block;

FIG. 4 is a bottom view of the climbable block;

FIG. 5 is a front view of the climbable block;

FIG. 6 is a rear view of the climbable block;

FIG. 7 is a right side view of the climbable block; and,

FIG. 8 is a left side view of the climbable block.

The broken lines in the drawings illustrate features that form no part of the claim. 

CLAIM The ornamental design for a climbable block, as shown and described. 